JPH0715622Y2 - Transfer feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a transfer feeder in which a crossbar can freely tilt and offset in the feed direction.

[Conventional technology]

A transfer feeder conventionally provided in a transfer press has a pair of transfer bars arranged in parallel in the work transfer direction.

Further, a cross bar having a work holding means is horizontally mounted between these transfer bars, and the transfer bar is operated in two-dimensional directions of a feed direction and a lift direction, thereby transferring the work to each processing station of the transfer press. There is also proposed a transfer feeder for loading and unloading workpieces.

In the transfer feeder as described above, the posture of the work is changed and the work is conveyed to the next process, the crossbar is rotated to prevent the work from interfering with the slide or the upper die, and the work is shifted in the work conveying direction. There is something.

[Problems to be solved by the device]

However, in the conventional transfer feeder, the crossbar cannot be tilted in the feed direction, so depending on the shape of the workpiece, it may not be able to be adsorbed by the vacuum cup,
Since the work and the mold interfered with each other, there were problems such as restrictions on the mold design.

The present invention has been made for the purpose of improving the above-mentioned problems, and an object thereof is to provide a transfer feeder in which a crossbar can be tilted also in the feed direction to improve versatility.

[Means and Actions for Solving the Problems]

In order to achieve the above-mentioned object, this invention moves a pair of transfer bars arranged in parallel in the feed direction in a two-dimensional direction and uses a work holding means provided on a cross bar horizontally installed between the transfer bars. In a transfer feeder that conveys a work to each processing station, both ends of the crossbar are tiltably supported by a tilt mechanism, and the tilt mechanism is provided on a slide that is movable in the longitudinal direction of the transfer bar. The tilt and offset mechanism allows the movement in the same direction and the opposite direction.

With this, in addition to the tilt that rotates about the axis of the crossbar, the crossbar can be offset to the upstream side or the downstream side, or tilted in the feed direction.
Greatly improved versatility.

〔Example〕

An embodiment of the present invention will be described in detail with reference to the drawings. In the drawing, reference numeral 1 is a press body, and a mold 3 is placed on a bolster 2 provided on a bed 1a for each processing station.

Reference numeral 4 denotes a pair of lift beams arranged side by side in the feed direction A, both ends of which are supported by a lift mechanism 5 and are vertically movable by the lift mechanism 5.

Guide rails 6 are laid on the lift beam 4 along the feed A, and a plurality of carriers 8 connected by transfer bars 7 are movably provided on the guide rails 6.

Each of the carriers 8 is provided with a guide roller 9 at the lower part thereof, and is movable in the feed direction A along the guide rail 6 by the guide rollers 9, and a tilt mechanism 10 is provided on each carrier 8. Has been.

A cross bar 11 is horizontally installed between the tilt mechanisms 10 facing each other, and a work holding means (not shown) such as a vacuum cup for adsorbing a work to these cross bars 11 is provided.
Is installed.

The tilt mechanism 10 is configured so that the suction means attached to the crossbar 11 can be tilted by rotating the crossbar 11 in the arrow A direction (see FIG. 1) about the axis. Tilt mechanism 10 that supports both ends of the bar 11
One of them is supported by a slide 31a of a tilt and offset mechanism 31 via a trunnion 30.

The other is slidably supported in the guide cylinder 32 via a bush 32a, and the tilt mechanism 10 and the guide cylinder 32 are connected to each other.
A key 33 for stopping rotation of the tilt mechanism 10 is provided between them.

The guide tube 32 is supported by the slide 31a of the tilt and offset mechanism 31 via the trunnion 30.

The tilt and offset mechanism 31 has a slide 31a that can be moved upstream and downstream along the transfer bar 7 by a tilt motor 31b.
By moving in the same direction at the same time, the crossbar 11
Can be offset to the upstream side or the downstream side, and by moving in the opposite direction, the crossbar 11 can be tilted in the arrow B direction (see FIG. 2).

On the other hand, a cam box 12 is provided on the downstream side in the feed direction A, and a feed cam 13 and a lift cam 14 that are rotated by the power taken out from the press body 1 are provided in the cam box 12.

A feed lever 15 and a lift lever 16 which are pivotally supported at their lower ends are circumferentially contacted with the cams 13 and 14, respectively.
The upper end of the lift lever 16 is swingable around the fulcrum with the rotation of 4, and the upper end of the lift lever 16 is interlocked with the lift mechanism 5 via the lift rod 17,
With the swing of 16, the lift beam 4 is moved up and down via the lift mechanism 5.

The upper end of the feed lever 15 is connected to the feed carrier 20 via a link 19. The feed carrier 20 is a guide rail 22 laid on the cam box 12.
Is supported via rollers 23 on the feed lever 15
It is movable in the feed direction A along the guide rail 22 with the swing of the feed carrier 20.
One end of a connecting rod 24 is pivotally attached to the end of the connecting rod 24 via a pin 23a.

The other end of the connecting rod 24 is pivotally attached via a pin 25 to the carrier 8 located on the most downstream side among the carriers 8 connected by the transfer bar 7.

Next, the operation will be described. In synchronization with the operation of the press body 1, the transfer bar 7 is operated in the two-dimensional directions, that is, the feed direction A and the lift direction, and the work holding means provided on the crossbar 11 sucks the work. Then, when the feed cam 15 swings the feed lever 15, the feed carrier 20 is moved along the guide rail 22.

As a result, the transfer bar 7 is moved in the feed direction, and the work is sucked by the work suction means attached to the crossbar 11. At the same time, when the posture of the work is changed during transport, the tilt that supports both ends of the crossbar 11 is supported. By rotating the crossbar 11 by a predetermined angle in the arrow A direction by the mechanism 10, the posture of the work can be changed and the work can be carried into the next process.

When the crossbar 11 is previously offset to the upstream side or the downstream side, the slide 31a is simultaneously moved to the upstream side or the downstream side by the tilt and offset mechanism 31.

Thereby, the feed stroke can be changed for each process within the range of the offset stroke.

Further, when the crossbar 11 is tilted in the feed direction A depending on the shape of the work or the like, the tilt motor 31b of the tilt and offset mechanism 31 moves the slide 31a in the opposite direction.

As a result, the crossbar 11 is tilted in the arrow B direction, so that the angle of the crossbar 11 with respect to the feed direction A can be arbitrarily set.

[Effect of device]

As described in detail above, the present invention allows the crossbars horizontally placed between the transfer bars to be tilted and offset in the feed direction as well. Since it becomes possible to convey by offsetting, the versatility is further improved, and the degree of freedom in designing the mold is significantly increased.

Further, since each crossbar can be offset individually, the feed stroke can be varied for each process within the range of the offset stroke.

[Brief description of drawings]

The drawings show an embodiment of the present invention, FIG. 1 is a configuration diagram of a transfer feeder, FIG. 2 is an enlarged plan view of the main part thereof, and FIG. 3 is a sectional view taken along line III-III in FIG. . 7 is a transfer bar, 10 is a tilt mechanism, 11 is a crossbar, 31 is a tilt and offset mechanism, 31a is a slide,
A is the feed direction.

Claims (1)

[Scope of utility model registration request] 1. A pair of transfer bars 7 arranged side by side in the feed direction A are moved in a two-dimensional direction, and each processing is carried out by a work holding means provided on a crossbar 11 which is laterally stretched between the transfer bars 7. In a transfer feeder that conveys a work to a station, both ends of the crossbar 11 are supported by a tilt mechanism 10 so as to be tiltable, and the tilt mechanism 10 is provided on a slide 31a that is movable in the longitudinal direction of the transfer bar 7. Slide 31a above
A transfer feeder in which the tilt and offset mechanism 31 can move in the same direction and in the opposite direction.